Results 21 to 30 of about 493 (133)
Effect of Molten Caustic Leaching on Demineralization and Desulfurization of Asphaltite
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2008 Abstract Molten caustic leaching process is effective in reducing significant amounts of ash-forming minerals, pyritic sulfur, and organic sulfur from solid fossil fuels. The effect of leaching asphaltite samples from Seguruk and Harbul collieries of Sirnak and Silopi asphaltite fields (situated in the Southeast Anatolia region of Turkey) with molten ...
Hamamci, C. +4 more
openaire +3 more sources
Ion irradiation of asphaltite as an analogue of solid hydrocarbons in the interstellar medium [PDF]
Astronomy & Astrophysics, 2005 We present the results of experiments of low temperature ion irradiation of pure asphaltite samples and those covered with water ice layers. Asphaltite (a natural bitumen) was used as an analogue of carbonaceous interstellar grains on which water- rich icy mantles can be formed in the dense and cold phases of the interstellar medium.
Strazzulla, G., Moroz, L.
openaire +3 more sources
Feasibility of using asphaltites from Pesca Boyacá in flexible pavement structures
Revista Ingeniería de Construcción, 2023 The use of unconventional materials has been a widely studied and used technique around the world. The results of the comparative analysis of a dense cold mix of aggregates with the addition of asphaltite from a technical and economic point of view is ...
J. Alarcón Dallos +2 more
doaj +1 more source
DETERMINATION OF VANADIUM IN TURKISH ASPHALTITES; pp. 331–338 [PDF]
Oil Shale, 2010 Vanadium is found in many rocks and minerals, including asphaltite. Asphaltite is one of the naturally occurring black, solid bitumens, which are soluble at heating in carbon disulfide and fuse.
I. AYDIN +3 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 5, May 2023., 2023 Abstract Recent studies have shown that biosignatures of ancient microbial life exist in mineral coatings in deep bedrock fractures of Precambrian cratons, but such surveys have been few and far between. Here, we report results from southwestern Sweden in an area of 1.6–1.5 Ga Paleoproterozoic rocks heavily reworked by the 1.14–0.96 Ga Sveconorwegian ...
Henrik Drake +4 more
wiley +1 more source
Environmental Toxicology and Chemistry, Volume 42, Issue 1, Page 7-18, January 2023., 2023 Abstract In the present study, we investigated the possibility of identifying the source oils of exposed fish using ratios of bicyclic sesquiterpane (bicyclane) chemical biomarkers. In the event of an oil spill, identification of source oil(s) for assessment, or for litigation purposes, typically uses diagnostic ratios of chemical biomarkers to produce
Francis D. Spilsbury +6 more
wiley +1 more source
Rheological behavior of asphaltite-modified bituminous binders
, 2013 This work focuses on the rheological properties of asphaltite-modified bituminous binders. The natural asphaltite, employed to modify a petroleum-derived-bitumen, is mined in Albania.
Duchez, Jean-Louis +4 more
core +5 more sources
ORGANIC GEOCHEMICAL CHARACTERISTICS OF ŞIRNAK ASPHALTITES IN SOUTHEAST ANATOLIA, TURKEY; pp. 58–83 [PDF]
Oil Shale, 2010 In this study, the organic geochemical properties of asphaltites in Åırnak region in Southeast Anatolia are given in detail. Total organic carbon, Rock-Eval pyrolysis, gas chromatography of saturated fractions, gas chromatoÂgraphy-mass spectrometry ...
O. KAVAK +3 more
doaj +1 more source
Geochemical research of asphaltite formation in the Orenburg region [PDF]
E3S Web of Conferences, 2019 The results of the studies of the physicochemical properties and genesis of asphaltites from the deposits of the Orenburg region are considered. Based on the data of a study on the distribution of hydrocarbon biomarkers (n-alkanes, isoprenanes, steranes,
Zakharchenko Maria +2 more
doaj +1 more source
OBTAINING CARBON GRAPHITE-LIKE NANOMATERIALS IN ASPHALTENE-BASED WASTE RECYCLING
Известия Томского политехнического университета: Инжиниринг георесурсов, 2022 The relevance of the study is caused by the increasing consumption of petroleum products and increasing amount of oil waste, which contains asphaltenes, the heaviest components of oil. Asphaltenes are poorly biodegradable.
Alexander Ya. Pak +5 more
doaj +1 more source